SN74ACT1071D Equivalent & Substitute Parts

Part Overview

The SN74ACT1071D is a 10-bit bus termination array IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This component is classified as Last Time Buy, indicating discontinued production with limited remaining inventory (684 pcs). Bus termination arrays are essential in digital logic applications requiring controlled signal termination and impedance matching on multi-bit data buses. The transition from Last Time Buy status to active alternatives necessitates identification of functionally equivalent substitute components to ensure design continuity and supply chain reliability.

Substiute Parts

SN74ACT1071D

Texas InstrumentsIn Stock: 769SN74ACT1071D Datasheet

Current PartRFQ

SN74ACT1071DR

Texas InstrumentsIn Stock: 3606SN74ACT1071DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74ACT1071D is determined by strict equivalence across the following critical parameters:

• Logic Function: Bus Termination Array with identical 10-bit configuration
• Electrical Specifications: Supply voltage range 4.5V ~ 5.5V and operating temperature range -40°C ~ 85°C
• Package Compatibility: 14-SOIC surface mount package with 0.154" (3.90mm) width
• Base Product Number: 74ACT1071 series designation
• Compliance Standards: ROHS3 compliance and MSL Level 1 rating

The SN74ACT1071DR qualifies as a direct substitute based on identical electrical performance, package geometry, and functional specifications. The primary distinction is packaging format: the main part (SN74ACT1071D) is supplied in Tube packaging, while the substitute (SN74ACT1071DR) is supplied in Tape & Reel format. This difference affects inventory management and automated assembly compatibility but does not alter component functionality or electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SN74ACT1071DR is the manufacturer-recommended substitute for the SN74ACT1071D. Both components share identical electrical specifications, functional performance, and physical package dimensions. Selection between these parts should be based on the following criteria:

SN74ACT1071D (Tube Packaging): Suitable for manual assembly, prototyping, or low-volume production where individual component handling is standard practice. Appropriate for applications with existing tube-based inventory management systems.

SN74ACT1071DR (Tape & Reel Packaging): Recommended for automated pick-and-place assembly, high-volume manufacturing, and production environments utilizing standard SMT equipment. The active product status and significantly higher inventory (3595 pcs vs. 684 pcs) provide superior supply chain continuity and reduced lead time risk.

Both components maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing processes and environmental regulations. The transition from Last Time Buy to Active status for the SN74ACT1071DR supports long-term design sustainability.

Frequently Asked Questions (FAQ)

Q: Can the SN74ACT1071DR be used as a direct replacement for the SN74ACT1071D in existing designs?

A: Yes. The SN74ACT1071DR is electrically and functionally identical to the SN74ACT1071D. Both components operate at 4.5V ~ 5.5V supply voltage, support the same -40°C ~ 85°C temperature range, and are housed in identical 14-SOIC packages. The only difference is packaging format (Tape & Reel vs. Tube), which does not affect circuit performance.

Q: What is the significance of the packaging format difference?

A: Packaging format affects supply chain logistics and assembly methodology. Tube packaging is suited for manual or low-volume assembly. Tape & Reel packaging is optimized for automated SMT equipment and high-volume production. Functionally, both formats contain identical components.

Q: Why is the SN74ACT1071D classified as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part number. Existing inventory is limited (684 pcs). The SN74ACT1071DR, supplied in Tape & Reel format, is the active production alternative with ongoing availability.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the SN74ACT1071D and SN74ACT1071DR maintain identical ROHS3 compliance, MSL Level 1 rating, REACH Unaffected status, and ECCN/HTSUS classifications. Regulatory and environmental compliance is equivalent.

Q: What inventory considerations should influence part selection?

A: The SN74ACT1071DR offers significantly higher inventory availability (3595 pcs vs. 684 pcs) and active product status, reducing supply chain risk and lead time uncertainty. For new designs or production planning, the SN74ACT1071DR is the preferred selection to ensure long-term component availability.